{"product_id":"vintage-hamilton-military-issued-aviation-wwii-navigational-chronograph-model-23hamilton-navigational-chronograph-model-23","title":"Vintage Hamilton Military Issued Aviation WWII Navigational Chronograph Model 23Hamilton Navigational Chronograph Model 23","description":"\u003cdiv class=\"right\"\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e\u003cul\u003e\u003cli\u003e\n\u003cb\u003eItem:\u003c\/b\u003e Pocket Watch\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cb\u003eBrand:\u003c\/b\u003e Hamilton\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cb\u003eModel:\u003c\/b\u003e Navigational Chronograph\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cb\u003eSize:\u003c\/b\u003e 16s\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cb\u003eYear:\u003c\/b\u003e 1943\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cb\u003eMovement:\u003c\/b\u003e Mechanical\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cb\u003eJewels:\u003c\/b\u003e 19\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cb\u003eGrade:\u003c\/b\u003e Model 23\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cb\u003eCase Material:\u003c\/b\u003e Chrome Plated\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cb\u003eCountry:\u003c\/b\u003e USA\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cb\u003eGender:\u003c\/b\u003e Unisex\u003c\/li\u003e\u003c\/ul\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Measurements\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e\u003cul\u003e\u003cli\u003e\n\u003cb\u003eDiameter:\u003c\/b\u003e 51mm\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cb\u003eStandardized Size for Pocket Watches:\u003c\/b\u003e 16s\u003c\/li\u003e\u003c\/ul\u003e\n\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Condition\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe Hamilton Model 23 is a legendary 19-jewel, 16-size navigational chronograph pocket watch manufactured by the Hamilton Watch Company in Lancaster, Pennsylvania, specifically for the United States Armed Forces during World War II. Highly prized by collectors today, it served as a critical mission tool—most famously used by military aviators and navigators aboard aircraft like the B-17 Flying Fortress and B-24 Liberator to calculate celestial and dead-reckoning positions\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\u003cli\u003e\n\u003cb\u003eOverall Condition:\u003c\/b\u003e Fair, overall condition\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cb\u003eFunctions:\u003c\/b\u003e Running strongly with no apparent issues, but no known service history\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cb\u003eCase:\u003c\/b\u003e Shows scratches. Has dents\/dings.\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cb\u003eCrystal:\u003c\/b\u003e Shows hairline scratches.\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cb\u003eDial condition:\u003c\/b\u003e Has spotting.\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cb\u003eFunction:\u003c\/b\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eTiming Data:\u003c\/b\u003e 0 Seconds\/day, 221 Amp, 2.8 BE\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComplications:\u003c\/b\u003e  Stop Watch.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\u003c\/ul\u003e\n\u003cbr\u003eHamilton: Producing its first pocket watches in Lancaster, Pennsylvania in 1892, Hamilton is one of the most recognizable names in American watchmaking. Although production moved to Switzerland in 1969, the brand’s American-made catalog remains extensive and highly regarded. With strong ties to military history and pop culture, Hamilton continues to offer both well-made modern watches and a deep archive of desirable vintage pieces.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cscript\u003e\n    document.addEventListener(\"DOMContentLoaded\", function() {\n        \/\/ Select all 'li' elements in the 'right' class div\n        const listItems = document.querySelectorAll('.right ul li span');\n        \n        listItems.forEach(span =\u003e {\n            \/\/ Check if the dynamic tag's content is empty\n            if (span.textContent.trim() === '') {\n                \/\/ Hide the parent 'li' element if the dynamic tag is empty\n                span.parentNode.style.display = 'none';\n            }\n        });\n    \n        \/\/ Select the paragraph in the 'right' class div for the condition note\n        const conditionNote = document.querySelector('.right p span');\n        if (conditionNote.textContent.trim() === '') {\n            \/\/ Hide the paragraph if the dynamic tag is empty\n            conditionNote.parentNode.style.display = 'none';\n        }\n    });\u003c\/script\u003e","brand":"Hamilton","offers":[{"title":"Default Title","offer_id":68702939480307,"sku":"10192026164230","price":800.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/5355\/3139\/files\/vintage-16s-1943-hamilton-stopwatch-19j-mechanical-51mm-sico8uzn.png?v=1794116468","url":"https:\/\/thewatchpreserve.com\/products\/vintage-hamilton-military-issued-aviation-wwii-navigational-chronograph-model-23hamilton-navigational-chronograph-model-23","provider":"thewatchpreserve","version":"1.0","type":"link"}